The benefits of trees and forests and the ecosystems services that they provide is well documented. Ecosystems services include carbon sequestration, stormwater retention, water pollution reduction, air pollution retention and others. In addition, tree planting efforts provide numerous social benefits including improvement of community cohesion, increase in social capital, and environmental stewardship and education. In order to provide a greater understanding of tree planting efforts and assessing tree benefits locally, two major project components were undertaken: 1) the research and documentation using case studies of individual tree planting efforts, and 2) assessment of benefits of recent and proposed trees for four selected parks in Prince George’s county.